*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

section[id^="category-"] {
  scroll-margin-top: 6rem;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #222;
  background-color: #f5f5f7;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  display: block;
}

button {
  font: inherit;
  cursor: pointer;
}

header {
  background: linear-gradient(135deg, #0f62fe, #0043ce);
  color: #fff;
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 10;
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.logo {
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: 0.03em;
}

.search-box {
  flex: 1;
  max-width: 480px;
  display: flex;
  align-items: center;
  background-color: rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
}

.search-box input {
  border: none;
  outline: none;
  background: transparent;
  color: #fff;
  width: 100%;
}

.search-box input::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.main-nav {
  margin-top: 0.75rem;
  display: flex;
  gap: 1.25rem;
  font-size: 0.95rem;
}

.main-nav a {
  padding-bottom: 0.2rem;
  border-bottom: 2px solid transparent;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  border-bottom-color: #fff;
}

main {
  max-width: 1120px;
  margin: 1.5rem auto 3.5rem;
  padding: 0 1.25rem;
  /* Removed grid layout that was causing the 2-column issue */
  display: block; 
}

/* Sidebar Category Menu */
.category-nav {
  background-color: #fff;
  border-radius: 0.75rem;
  padding: 1rem 1.1rem;
  box-shadow: 0 10px 30px rgba(15, 15, 20, 0.08);
}

.category-nav h2 {
  font-size: 1rem;
  margin: 0 0 0.75rem;
}

.category-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.category-nav li + li {
  margin-top: 0.4rem;
}

.category-nav a {
  font-size: 0.92rem;
  color: #444;
}

.category-nav a:hover {
  color: #0f62fe;
}

.breadcrumb-nav {
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
  color: #666;
}

.breadcrumb {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.breadcrumb li::after {
  content: "›";
  margin-left: 0.25rem;
  color: #aaa;
}

.breadcrumb li:last-child::after {
  content: "";
}

.breadcrumb a {
  color: #0f62fe;
}

.breadcrumb .current {
  color: #222;
  font-weight: 500;
}

/* Main Content Area */
.content-card {
  background-color: #fff;
  border-radius: 0.75rem;
  padding: 1.1rem 1.25rem 1.4rem;
  box-shadow: 0 10px 30px rgba(15, 15, 20, 0.08);
  width: 100%;
  margin-bottom: 1rem;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.6rem;
}

.section-header h1,
.section-header h2 {
  font-size: 1.1rem;
  margin: 0;
}

.section-header p {
  margin: 0;
  font-size: 0.85rem;
  color: #777;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 0.75rem;
  width: 100%;
}

.product-card {
  min-width: 0;
  max-width: none;
  border-radius: 0.75rem;
  background-color: #fafafa;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

.product-card:hover {
  transform: translateY(-3px);
  background-color: #ffffff;
  box-shadow: 0 12px 30px rgba(15, 15, 20, 0.08);
}

.product-thumb {
  border-radius: 0.6rem;
  overflow: hidden;
  background: linear-gradient(135deg, #f6f7fb, #e6ebff);
  margin-bottom: 0.6rem;
}

.product-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.product-name {
  font-size: 0.98rem;
  font-weight: 600;
  color: #162447;
}

.product-name a:hover {
  color: #0f62fe;
  text-decoration: none;
}

.product-meta {
  font-size: 0.8rem;
  color: #888;
}

.product-price {
  margin-top: 0.35rem;
  font-weight: 700;
  color: #e53935;
}

.product-actions {
  margin-top: 0.6rem;
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.qty-input {
  width: 3.2rem;
  padding: 0.25rem 0.35rem;
  border-radius: 999px;
  border: 1px solid #d0d7e2;
  font-size: 0.85rem;
}

.btn-primary {
  flex: 1;
  border-radius: 999px;
  border: none;
  background: linear-gradient(135deg, #0f62fe, #0043ce);
  color: #fff;
  padding: 0.35rem 0.9rem;
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
}

.btn-primary:hover {
  filter: brightness(1.05);
}

.product-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.1fr);
  gap: 1.5rem;
}

.product-gallery {
  background-color: #fafafa;
  border-radius: 0.9rem;
  padding: 1rem;
}

.product-main-image {
  border-radius: 0.75rem;
  overflow: hidden;
  background: linear-gradient(135deg, #f6f7fb, #e6ebff);
}

.product-details {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.product-details h1 {
  font-size: 1.3rem;
  margin: 0;
}

.product-tagline {
  font-size: 0.9rem;
  color: #666;
}

.product-detail-price {
  font-size: 1.3rem;
  color: #e53935;
  font-weight: 700;
}

.product-desc {
  font-size: 0.9rem;
  color: #555;
  line-height: 1.6;
}

.detail-meta {
  font-size: 0.82rem;
  color: #777;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.8rem;
}

.detail-qty {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
}

.detail-qty input {
  width: 3.5rem;
  padding: 0.28rem 0.4rem;
  border-radius: 999px;
  border: 1px solid #d0d7e2;
}

.cart-panel {
  position: fixed;
  top: 5rem;
  right: -260px;
  width: 260px;
  max-height: calc(100vh - 6rem);
  background-color: #111827;
  color: #f9fafb;
  border-radius: 1rem 0 0 1rem;
  padding: 0.9rem 0.9rem 1rem;
  box-shadow: 0 15px 40px rgba(15, 23, 42, 0.8);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 30;
  transition: right 0.25s ease;
}

.cart-toggle-tab {
  position: absolute;
  left: -34px;
  top: 1.2rem;
  width: 34px;
  height: 90px;
  background: linear-gradient(135deg, #0f62fe, #22c1c3);
  border-radius: 999px 0 0 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  cursor: pointer;
}

.cart-panel h2 {
  font-size: 0.95rem;
  margin: 0;
}

.cart-list {
  flex: 1;
  overflow: auto;
  font-size: 0.82rem;
}

.cart-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.25rem 0.5rem;
  padding: 0.35rem 0;
  border-bottom: 1px dashed rgba(148, 163, 184, 0.4);
}

.cart-item-name {
  font-weight: 500;
}

.cart-item-meta {
  color: #9ca3af;
}

.align-right {
  text-align: right;
}

.cart-qty-input {
  width: 3.2rem;
  padding: 0.18rem 0.35rem;
  margin-left: 0.25rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.9);
  background-color: #020617;
  color: #f9fafb;
  font-size: 0.8rem;
}

.cart-footer {
  border-top: 1px solid rgba(55, 65, 81, 0.9);
  padding-top: 0.5rem;
  font-size: 0.85rem;
}

.cart-total-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.4rem;
}

.btn-checkout {
  width: 100%;
  margin-top: 0.25rem;
  border-radius: 999px;
  border: none;
  padding: 0.45rem 0.7rem;
  font-size: 0.88rem;
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: #fff;
}

.btn-checkout:hover {
  filter: brightness(1.06);
}


@media (hover: hover) {
  .cart-panel:hover {
    right: 0;
  }
}

.cart-toggle-checkbox {
  display: none;
}

@media (hover: none) {
  .cart-panel {
    right: -220px;
  }

  .cart-toggle-checkbox:checked ~ .cart-panel {
    right: 0;
  }
}

/* Footer */
footer {
  border-top: 1px solid #e5e7eb;
  padding: 1.5rem 1.25rem 2rem;
  font-size: 0.82rem;
  color: #666;
  text-align: center;
}

footer a {
  color: #0f62fe;
}


@media (max-width: 960px) {
  main {
    grid-template-columns: 1fr;
  }

  .category-nav {
    order: -1;
  }

  .product-card {
    flex: 1 1 calc(50% - 0.7rem);
  }

  .product-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  header {
    padding-inline: 1.25rem;
  }

  .top-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .search-box {
    width: 100%;
  }

  main {
    margin-top: 1rem;
  }

  .product-card {
    flex: 1 1 100%;
  }
}